20993555

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{22453}}^1$

素因数の和:22486

約数の個数: 16

約数和(自身を含む): 29100384

約数和(自身を除く): 8106829

約数列:

[1, 5, 11, 17, 55, 85, 187, 935, 22453, 112265, 246983, 381701, 1234915, 1908505, 4198711, 20993555]

約数ペア:

[(1, 20993555), (5, 4198711), (11, 1908505), (17, 1234915), (55, 381701), (85, 246983), (187, 112265), (935, 22453)]